Hu, Jungang
Bao, Quan
Cao, Guang
Zhu, Xu
Yang, Renjie
Ji, Xinqiang
Xu, Liang
Zheng, Kanglian
Li, Weiliang
Xing, Baocai
Wang, Xiaodong
Funding for this research was provided by:
National Science Foundation of China (no. 81471759)
Article History
Received: 20 September 2019
Accepted: 31 December 2019
First Online: 23 January 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this retrospective study, formal consent is not required.
: Informed consent was obtained from all individual participants included in the study.